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69256-50-4

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69256-50-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69256-50-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,2,5 and 6 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 69256-50:
(7*6)+(6*9)+(5*2)+(4*5)+(3*6)+(2*5)+(1*0)=154
154 % 10 = 4
So 69256-50-4 is a valid CAS Registry Number.

69256-50-4Downstream Products

69256-50-4Relevant articles and documents

Syntheses of 20'-Deoxyvinblastine, 20'-Deoxyleurosidine, 20'-Deoxyvincovaline, 20'-epi-20'-Deoxyvincovaline, and 20'-Deoxyvincristine and Its 20'-Epimer through Racemic and Enantioselectively Generated Intermediates. New Syntheses of D/E-cis- and -trans-Ψ

Kuehne, Martin E.,Bornmann, William G.

, p. 3407 - 3420 (2007/10/02)

Vindoline (20), on reaction with chloro imine derivatives of the D-seco-D/E-trans-Ψ- and -20-epi-Ψ-vincadifformines 18 and 19, followed by cyclization and debenzylation steps, provided the natural products 20'-deoxyvinblastine (4) and 20'-deoxyleurosidine

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